Screen.



D. B. COLLINS.

SCREEN.

APPLICATION FILED JULY 5.1913.

1,1 20,601. Patented Dec. 8, 1914.

'HE NORRIS PETERS (20., Pnoraurnn. WAzHING nnnnn v unirnn saiaans arana curios.

DANIEL B. COLLINS, OF FARGO, NORTH DAKOTA.

SCREEN.

To all whom it may concern:

Be it known that I, DANIEL B. COLLINS, a citizen of the United States, residing at Fargo, in the county of Cass and State of North Dakota, have invented certain new and useful Improvements in Screens, of which the following is a specification, reference being had to the accompanying draw ings.

This invention relates to new and useful improvements in screens and more particularly to window and door screens, the ob ject of this invention being to provide an improved device of this character which will permit flies and other insects to escape from the interior of the house but will prevent them from returning.

Another object of the invention is to pro vide a device of the above character which will possess advantages in points of efliciency and durability, is inexpensive of manufacture and at the same time is simple in construction and operation.

With the above and other objects in view, the invention consists in the novel features of construction and the combination and arrangement of parts to be hereinafter more fully described, pointed out in the claim and shown in the accompanying drawings, in which- Figure 1 is an elevation of a screen constructed in accordance with my invention; Fig. 2 is a transverse sectional view; and Fig. 3 is a detail transverse sectional view.

Referring more particularly to the drawings, 1 indicates the longitudinal sides of the frame, which are suitably connected at their ends by means of the transverse cross pieces 2. Arranged upon the outer sides of the pieces 1 and 2 is a wire screen 8, the edges of which are securely held in position by means of the cleats 4: arranged upon the side and end pieces and secured thereto by means of the screws or nails 5. The longitudinal side pieces 1 are provided adjacent one end with the offsets 6, upon which are arranged the ends of a second screen wire 7 the upper edge of the second screen wire being arranged across the upper end piece 2, said screen being held securely in place by means of the headed pins 8. The lower edge of the second screen wire 7 is arranged in spaced relation with the outer screen 3 and secured thereto by means of the tubular spacing member 9, said member being provided at its ends with the spurs 10 Specification of Letters Patent.

Application filed July 5, 1913.

' inafter more fully set forth.

Patented Dec. 8, 1914.

Serial No. 777,575.

adapted to engage in the meshes of the screen wire to securely hold the same in position.

The upper end of the frame includes a plurality of separable blocks, the end blocks being substantially rectangular in form and provided with the inner inclined end portion 11, the purpose of which will be here- The blocks 12 which are arranged between the end blocks are substantially triangular in form and the spaces between said blocks form suitable outlet openings which are adapted to communicate with the openings 14 formed in the top plate 15, which is arranged across the upper end of the frame. It will be noted that the inclined walls 11 of the end blocks'form one of the side walls of one of the outlet openings, one of the triangular blocks forming the other side wall of the outlet opening. The openings 14; are struck out from the metal plate 15, the struck out portions being adapted to provide suitable spurs 16, which are circularly arranged around the openings 14. It will be apparent that the insects crawling up the inner side of the screen 3 will pass beneath the second screen 7 and upwardly through the openings 13 and 14, passing out between the spur members 16. It will also be apparent that it will be almost impossible for the insects to pass down through the openings 14: on account of the spurs 16. 7 From the above description taken in connection with the accompanying drawings, it will be readily apparent that I have provided a new and useful screen, which is adapted for application to windows and doors whereby the flies and other insects will readily pass from the interior to the exterior, but at the same time will not be permitted to pass back to the interior. lt will also be apparent that the dev1ce 1n itself is extremely simple in construction and can be manufactured at a comparatively low cost.

While I have shown and described my 1nvention applied to the ordinary window screen, it will be readily understood that the same may be applied and used equally as well upon screen doors and the like.

While I have shown and described the preferred form of my invention, it will be obvious that various changes in the details of construction and in the proportions may be resorted to for successfully carrying my invention into practice without sacrificing any of the novel features or departing from I the scope of the appended claim.

VVhat I claim is Ina screen,the combination of a frame comprising'side pieces, end pieces connecting said side pieces, a screen arranged upon the outer sides of said side and end pieces, said side piecesbeing provided adjacent one end With oflsets, a second screen Wire arranged upon said offsets and in spaced relation With the first screen, a tubular member having spur members formed upon each end thereof and adapted to engage Copies-,6! this patutmay be obtained for five cents each, by addressing the Commissioner of Patents Washington, 10. 0. 

